Microbial agent experimental comparison device for alfalfa planting

Abstract

The invention discloses a microbial agent experiment comparison device for alfalfa planting, and relates to the technical field of microbial experiment equipment.The microbial agent experiment comparison device comprises a constant-temperature box, and a first temperature control chamber and a second temperature control chamber are arranged on the two sides of the interior of the constant-temperature box respectively; a plurality of groups of cultivation mechanisms for providing growth environments for alfalfa are arranged in the first temperature control chamber and the second temperature control chamber; a sowing mechanism for placing alfalfa seeds is laid on the top of each group of cultivation mechanism; the first temperature control chamber and the second temperature control chamber are internally provided with soil covering mechanisms for covering alfalfa seeds with soil, each soil covering mechanism comprises a plurality of bottom plates fixed in the constant-temperature box, the bottom plates and the multiple sets of culture bottles are distributed in a staggered mode, and the top of each bottom plate is slidably provided with a soil covering piece. The microbial agent experimental comparison device for alfalfa planting, disclosed by the invention, has the effects of high precision and high functionality.

Description

Technical Field

[0001] The invention relates to the technical field of microbial experimental equipment, in particular to a microbial agent experimental comparison device for alfalfa planting. Background Art

[0002] Alfalfa is a perennial herbaceous plant of the Leguminosae family and the genus Medicago; the stems are erect, clumped or creeping, quadrangular and much branched; the stipules are large, ovate-lanceolate, and the leaflets are obovate-oblong; the flowers are family-like racemes; the pedicels are bell-shaped, and the corolla has purple flowers; the fruits are spiral and brown when ripe; the seeds are small and smooth, and are yellow or brown. Alfalfa is native to the Mediterranean area and southwest Asia, and was later widely introduced and cultivated as feed and forage around the world; China began to introduce and cultivate it very early, and it is often cultivated in many areas, and in some areas it has become semi-wild after escaping, and often grows beside fields, roadsides, wilderness, grasslands, river banks and valleys.

[0003] When alfalfa is planted, microbial agents are added to improve soil fertility, promote alfalfa growth, enhance stress resistance, improve soil structure, reduce the use of chemical fertilizers and pesticides, and ultimately improve the yield and quality of alfalfa. Among them, in order to obtain the effects of the types and concentrations of agents on the growth efficiency of alfalfa through experiments, before systematic planting of alfalfa, it is necessary to conduct comparative experiments in advance to determine the factors affecting the growth of alfalfa. The structure of the traditional experimental comparison device is too simple and cannot effectively control the accuracy of the comparative test process, thereby affecting the researchers' judgment of the test results. Therefore, under the above-mentioned viewpoints, the existing experimental comparison devices for microbial agents for alfalfa planting still have room for improvement. Summary of the invention

[0004] The invention discloses a microbial agent experimental comparison device for alfalfa planting, aiming to solve the technical problem that the traditional microbial agent experimental comparison device for alfalfa planting has an overly simple structure and cannot effectively control the accuracy in the comparative test process, thereby affecting the judgment of researchers on the test results and having a shortcoming in use.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A microbial agent experimental comparison device for alfalfa planting comprises a constant temperature box, wherein a first temperature control chamber and a second temperature control chamber are respectively arranged on both sides of the constant temperature box;

[0007] The first temperature control chamber and the second temperature control chamber are provided with a plurality of cultivation mechanisms for providing a growth environment for alfalfa, the cultivation mechanisms comprising a plurality of racks symmetrically installed inside the first temperature control chamber and the second temperature control chamber, a plurality of evenly distributed culture bottles are inserted inside each rack, a reserved interval is provided on the top of each culture bottle, the interior of the culture bottle is filled with culture soil, and the top of the culture soil layer is flush with the bottom of the reserved interval;

[0008] A sowing mechanism for placing alfalfa seeds is laid on the top of each group of the cultivation mechanisms, and the sowing mechanism includes a plurality of paperboards placed on the top of each group of the culture bottles, and the paperboards are made of cellulose material that degrades when exposed to water;

[0009] The first temperature control chamber and the second temperature control chamber are also provided with a soil covering mechanism for covering the alfalfa seeds, the soil covering mechanism comprises a plurality of bottom plates fixed inside the constant temperature box, the bottom plates and the plurality of groups of culture bottles are staggered, and a soil covering piece is slidably mounted on the top of each bottom plate;

[0010] The sowing mechanism is used to preset alfalfa seeds on the top of the cultivation mechanism and cooperate with the operation of the soil covering mechanism to complete the planting of alfalfa seeds. At the same time, different microbial agents are provided to several groups of alfalfa seeds in the cultivation mechanism, and the growth status of the alfalfa seeds in each group of the cultivation mechanism is observed to make a comparative experiment.

[0011] A sowing mechanism is arranged inside the constant temperature box, and the sowing mechanism is used to preset alfalfa seeds on the top of the cultivation mechanism in cooperation with the operation of the soil covering mechanism to complete the planting of alfalfa seeds. At the same time, different microbial agents are provided for alfalfa seeds in several groups of cultivation mechanisms, and the growth status of alfalfa seeds in each group of cultivation mechanisms is observed to make a comparative experiment. The sowing mechanism and the soil covering mechanism are used to complete the constancy of the influencing factors of each group of cultivation mechanisms, such as the number of alfalfa seeds and the capacity of the covering culture soil, so as to ensure the accuracy of the experimental structure. In addition, the equipment completes various experiments such as the influence of different microbial agents on the growth efficiency of alfalfa, the influence of different growth temperatures on the growth efficiency of alfalfa under the same microbial agent, and the influence of soil salinity and alkalinity in different growth environments on the growth efficiency of alfalfa under the same microbial agent, thereby greatly improving the functionality of traditional experimental equipment.

[0012] In a preferred solution, the cultivation mechanism also includes a rubber hose penetrating through the side of each reserved interval, and a plurality of evenly distributed infusion tubes are set up inside the constant temperature box, and the infusion tubes are in continuous connection with a plurality of the rubber hoses in the same group.

[0013] A culture bottle structure inserted into a frame rod is arranged inside the constant temperature box, and the interior of the culture bottle is filled with culture soil. The culture bottle is used to provide growth conditions for alfalfa seeds scattered on the top of the culture soil. At the same time, a hose structure connected to an infusion tube is additionally arranged on the top of the culture bottle. Nutrient solution, microbial agent solution or saline is introduced into the interior of the culture bottle by the infusion tube, so as to simulate different contrast environments according to needs and ensure the functionality of the equipment.

[0014] In a preferred embodiment, the sowing mechanism also includes a plurality of concave areas provided inside each of the cardboards, each of the concave areas corresponds to and engages with the inside of a reserved area, and a plurality of seed burying grooves for placing alfalfa seeds are evenly provided on the top of each of the concave areas.

[0015] By providing a soluble cardboard structure with a built-in concave area, the operator sows alfalfa seeds on the top of the cardboard, causing the alfalfa seeds to be stuck in the inside of the seed embedding groove, thereby ensuring that the amount of alfalfa on the top of each culture bottle is the same, thereby ensuring the accuracy of the measured experimental results.

[0016] In a preferred embodiment, the soil covering mechanism further comprises the ends of a plurality of soil covering members fixedly connected to a connecting rod, an electric push rod is horizontally installed on the outside of the thermostatic box, and the output end of the electric push rod horizontally penetrates into the interior of the thermostatic box and is connected to the side of the connecting rod.

[0017] By providing a connecting rod structure pulled by an electric push rod, the connecting rod is used to drive the covering piece to move horizontally. Therefore, after the cardboard is installed on the top of all tissue culture bottles, the horizontal movement of the covering piece is used to drive the culture soil previously accumulated inside the covering piece to cover the top of the cardboard, covering the alfalfa seeds inside the cardboard, thereby providing conditions for the growth of the alfalfa seeds and ensuring the integrity of the operation of the equipment.

[0018] In a preferred embodiment, the covering member includes a filling portion slidably distributed on the top of the base plate, the interior of the filling portion is paved with loose culture soil, and a plurality of circular through grooves are opened through the bottom of each filling portion, and each of the circular through grooves is symmetrically distributed in the horizontal direction with one of the reserved intervals.

[0019] By configuring the soil covering member to consist of a filling portion and a circular through groove, the culture soil can be laid in advance inside the filling portion, and the culture soil inside the filling portion can be spread from the circular through groove to the top of each culture bottle along with the horizontal movement of the filling portion, and the remaining culture soil inside the filling portion can be used for the next experiment, thereby ensuring the integrity of the operation of the equipment.

[0020] From the above, it can be seen that the microbial agent experimental comparison device for alfalfa planting provided by the present invention has the following technical effects.

[0021] 1. A culture bottle structure plugged into the frame rod is arranged inside the constant temperature box, the culture bottle is filled with culture soil, and a soluble cardboard structure with a concave area is additionally arranged. The operator sows alfalfa seeds on the top of the cardboard, causing the alfalfa seeds to be stuck in the seed burying groove, and the top of the cardboard is covered with soil with the covering piece to complete the sowing of alfalfa seeds, thereby controlling the number of alfalfa seeds on the top of each culture bottle and the filling capacity of the culture soil to be the same. Different from traditional experimental equipment, this equipment can greatly improve the accuracy of the measured experimental results;

[0022] 2. A hose structure connected to the infusion tube is additionally provided on the top of the culture bottle. The infusion tube is used to introduce nutrient solution, microbial agent solution or salt water into the interior of the culture bottle, so as to simulate different comparative environments according to needs, complete multiple experiments such as the impact test of different microbial agents on the growth efficiency of alfalfa, the impact test of different growth temperatures on the growth efficiency of alfalfa under the same microbial agent, and the impact test of soils with different salinity on the growth efficiency of alfalfa under the same microbial agent, thereby greatly improving the functionality of traditional experimental equipment and ensuring the working efficiency of this equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 This is a cross-sectional view of the thermostat structure proposed by the present invention.

[0025] Figure 3 This is a schematic diagram of the internal structure of the constant temperature box proposed by the present invention.

[0026] Figure 4 This is an exploded view of the cultivation mechanism structure proposed by the present invention.

[0027] Figure 5 This is a schematic diagram of the bottom structure of the culture bottle proposed by the present invention.

[0028] Figure 6 This is a schematic diagram of the structure of the seeding mechanism proposed by the present invention.

[0029] Figure 7 This is a schematic diagram of the soil covering mechanism structure proposed by the present invention.

[0030] Figure 8 This is a schematic diagram of the soil covering structure proposed by the present invention.

[0031] In the figure: 1. constant temperature box; 2. first temperature control room; 3. second temperature control room; 4. cultivation mechanism; 401. rack; 402. culture bottle; 403. reserved area; 404. hose; 405. infusion tube; 406. oxygen permeable hole; 407. cannula; 408. adapter; 5. sowing mechanism; 501. cardboard; 502. concave area; 503. seed burying groove; 504. feed port; 505. pre-torn hole; 6. soil covering mechanism; 601. bottom plate; 602. soil covering piece; 6021. filling part; 6022. circular through groove; 603. connecting rod; 604. electric push rod. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] The invention discloses a device for experimental comparison of microbial agents for alfalfa cultivation, which is mainly used for the scenario of experimental comparison of microbial agents for alfalfa cultivation.

[0034] Reference Figures 1 to 8 , a microbial agent experimental comparison device for alfalfa planting, comprising a constant temperature box 1, wherein a first temperature control chamber 2 and a second temperature control chamber 3 are respectively arranged on both sides of the constant temperature box 1;

[0035] Several groups of cultivation mechanisms 4 are arranged inside the first temperature control chamber 2 and the second temperature control chamber 3 to provide a growth environment for alfalfa. The cultivation mechanisms 4 include several groups of racks 401 symmetrically installed inside the first temperature control chamber 2 and the second temperature control chamber 3. Several uniformly distributed culture bottles 402 are inserted inside each group of racks 401. A reserved interval 403 is arranged on the top of each culture bottle 402. The inside of the culture bottle 402 is filled with culture soil. The top of the culture soil layer is flush with the bottom of the reserved interval 403.

[0036] A sowing mechanism 5 for placing alfalfa seeds is placed on the top of each group of cultivation mechanisms 4. The sowing mechanism 5 includes a plurality of paperboards 501 placed on the top of each group of culture bottles 402. The paperboards 501 are made of cellulose materials that are degradable when exposed to water.

[0037] The first temperature control chamber 2 and the second temperature control chamber 3 are also provided with a covering mechanism 6 for covering the alfalfa seeds with soil. The covering mechanism 6 includes a plurality of bottom plates 601 fixed inside the constant temperature box 1. The bottom plates 601 and a plurality of groups of culture bottles 402 are staggered and distributed. A covering member 602 is slidably mounted on the top of each bottom plate 601.

[0038] The alfalfa seeds are preset on the top of the cultivation mechanism 4 through the sowing mechanism 5 and cooperate with the operation of the soil covering mechanism 6 to complete the planting of the alfalfa seeds. At the same time, different microbial agents are provided to the alfalfa seeds in several groups of cultivation mechanisms 4, and the growth status of the alfalfa seeds in each group of cultivation mechanisms 4 is observed to make a comparative experiment.

[0039] In this embodiment: the experimenter holds the sowing mechanism 5 and spreads alfalfa seeds on the top of the sowing mechanism 5, and evenly places the sowing mechanism 5 on the top of several groups of cultivation mechanisms 4, and starts the soil covering mechanism 6 at the same time, so that the soil covering mechanism 6 moves horizontally to cover the cultivation soil on the top of the cultivation mechanism 4;

[0040] At this time, when the experimenter wants to complete the test of the effect of different microbial agents on the growth efficiency of alfalfa, the experimenter connects one group of cultivation mechanisms 4 to the aqueous solution, and connects another group of cultivation mechanisms 4 to the microbial agent solution to be tested, and observes the growth rate of alfalfa in the two groups of cultivation mechanisms 4 in a cycle of seven to ten days;

[0041] When the experimenter wants to complete the test of the effect of different growth temperatures on the growth efficiency of alfalfa under the same microbial agent, the experimenter connects the several groups of cultivation mechanisms 4 located inside the first temperature control chamber 2 and the second temperature control chamber 3 to the same microbial agent solution to be tested, and at the same time controls the temperature difference inside the first temperature control chamber 2 and the second temperature control chamber 3 through the constant temperature box 1, and observes the growth rate of alfalfa inside the several groups of cultivation mechanisms 4 located inside the first temperature control chamber 2 and the second temperature control chamber 3 in a cycle of seven to ten days;

[0042] When the experimenters wanted to complete the test on the effect of soil with different salinity on the growth efficiency of alfalfa under the same microbial agent, they connected the two cultivation mechanisms 4 to saline solutions of different concentrations respectively, and observed the growth rate of alfalfa inside the two cultivation mechanisms 4 in a cycle of seven to ten days.

[0043] Among them, microbial agents can be selected from rhizobia, nitrogen-fixing bacteria, etc.

[0044] Reference Figures 1 to 5 In a preferred embodiment, the cultivation mechanism 4 also includes a rubber hose 404 that penetrates and connects the sides of each reserved interval 403, and a plurality of evenly distributed infusion tubes 405 are set up inside the constant temperature box 1, and the infusion tubes 405 are penetrated and connected with a plurality of rubber hoses 404 in the same group.

[0045] The experimenter holds the sowing mechanism 5 and spreads alfalfa seeds on the top of the sowing mechanism 5, and at the same time evenly places the sowing mechanism 5 on the top of several groups of culture bottles 402, so that the sowing mechanism 5 is engaged in the reserved interval 403 on the top of each culture bottle 402, and at the same time starts the soil covering mechanism 6, so that the soil covering mechanism 6 moves horizontally to cover the top of the reserved interval 403 with culture soil, thereby completing the sowing of alfalfa seeds; wherein, the bottom of each culture bottle 402 is penetrated by a plurality of evenly distributed oxygen holes 406, and oxygen is exchanged for the culture soil inside the culture bottle 402 through the oxygen holes 406, so as to prevent the roots of the growing alfalfa seedlings from rotting due to lack of oxygen.

[0046] Further, it is supplemented that: the bottom of each infusion tube 405 is connected with a number of evenly distributed cannulas 407, each cannula 407 is correspondingly plugged into the inside of a hose 404, and the end of each infusion tube 405 is provided with an adapter 408, which is distributed on the outside of the constant temperature box 1.

[0047] Reference Figure 6 In a preferred embodiment, the sowing mechanism 5 also includes a plurality of concave areas 502 disposed inside each cardboard 501, each concave area 502 correspondingly engages with the inside of a reserved area 403, and a plurality of seed burying grooves 503 for placing alfalfa seeds are evenly disposed on the top of each concave area 502.

[0048] The experimenter holds the cardboard 501 and evenly spreads the alfalfa seeds into the several concave sections 502 inside the cardboard 501, so that the alfalfa seeds are snapped into the several seed embedding grooves 503. After the seeds are spread, the experimenter holds the cardboard 501 and presses the cardboard 501 to the top of the single group of culture bottles 402, so that each concave section 502 is correspondingly snapped into the reserved section 403 at the top of each culture bottle 402, and starts the soil covering mechanism 6 at the same time, so that the soil covering mechanism 6 moves horizontally to cover the top of the concave section 502 with culture soil, covers the exposed alfalfa seeds, and completes the sowing of the alfalfa seeds; wherein, the outer side of the bottom of each concave section 502 is surrounded by several discharge ports 504. When the experimenter evenly spreads the alfalfa seeds into the several concave sections 502 inside the cardboard 501, the excess alfalfa seeds inside the concave section 502 fall out through the discharge ports 504.

[0049] Further, it is supplemented that: a plurality of pre-tear holes 505 are evenly opened inside the cardboard 501, and the pre-tear holes 505 and the concave sections 502 are interspersed. The experimenter holds the cardboard 501 and tears along the pre-tear holes 505, so that one concave section 502 can be torn off separately according to needs.

[0050] Reference Figures 1 to 3 , Figures 7 and 8 In a preferred embodiment, the covering mechanism 6 also includes the ends of several covering pieces 602 fixedly connected to a connecting rod 603, and an electric push rod 604 is horizontally installed on the outside of the constant temperature box 1. The output end of the electric push rod 604 horizontally penetrates into the interior of the constant temperature box 1 and is connected to the side of the connecting rod 603.

[0051] The experimenter holds the cardboard 501 and presses the cardboard 501 to the top of the single group of culture bottles 402, so that each concave section 502 is correspondingly engaged in the reserved section 403 at the top of each culture bottle 402, and starts the electric push rod 604 at the same time, so that the output shaft of the electric push rod 604 retracts and pulls a plurality of soil covering pieces 602 through the connecting rod 603, so that the soil covering pieces 602 move horizontally along the top of the bottom plate 601, and at the same time covers the top of the concave section 502 on the side with culture soil, covers the exposed alfalfa seeds, and completes the sowing of alfalfa seeds.

[0052] Reference Figure 7 and Figure 8 The covering member 602 includes a filling portion 6021 slidably distributed on the top of the bottom plate 601, and the interior of the filling portion 6021 is paved with loose culture soil. A plurality of circular through grooves 6022 are opened through the bottom of each filling portion 6021, and each circular through groove 6022 is symmetrically distributed along the horizontal direction with a reserved interval 403.

[0053] The experimenter starts the electric push rod 604, causing the output shaft of the electric push rod 604 to retract and at the same time pulls several filling parts 6021 through the connecting rod 603, causing the filling parts 6021 to move horizontally along the top of the bottom plate 601 until the circular groove 6022 moves to the top of the concave section 502. At this time, the culture soil inside the filling part 6021 will cover the top of the concave section 502 on the side through the circular groove 6022, covering the exposed alfalfa seeds, thereby completing the sowing of the alfalfa seeds.

[0054] Working principle: When in use, the experimenter holds the cardboard 501 and evenly spreads the alfalfa seeds into the several concave sections 502 inside the cardboard 501, so that the alfalfa seeds are snapped into the several seed embedding grooves 503, and the excess alfalfa seeds in the concave sections 502 fall out through the discharge port 504. During operation, an additional receiving box is placed under the cardboard 501 to recycle the excess seeds. After the seeds are spread, the experimenter holds the cardboard 501 and presses the cardboard 501 to the top of the single group culture bottle 402, so that each concave section 502 is evenly filled with seeds. It should be snapped into the reserved interval 403 at the top of each culture bottle 402. At this time, the experimenter starts the electric push rod 604, causing the output shaft of the electric push rod 604 to retract and pull a plurality of filling parts 6021 through the connecting rod 603, causing the filling parts 6021 to move horizontally along the top of the bottom plate 601 until the circular through groove 6022 moves to the top of the concave interval 502. At this time, the culture soil inside the filling part 6021 will cover the top of the concave interval 502 on the side through the circular through groove 6022, covering the exposed alfalfa seeds, and completing the sowing of alfalfa seeds;

[0055] At this time, when the experimenter wants to complete the test of the influence of different microbial agents on the growth efficiency of alfalfa, the experimenter connects the infusion tube 405 connected to the side of one group of culture bottles 402 with the aqueous solution, connects the infusion tube 405 connected to the side of another group of culture bottles 402 with the microbial agent solution to be tested, and respectively introduces the aqueous solution and the microbial agent solution into the two groups of culture bottles 402 through the infusion tube 405 and the rubber tube 404, and observes the growth rate of alfalfa in the two groups of culture bottles 402 in a cycle of seven to ten days;

[0056] When the experimenter wants to complete the test of the effect of different growth temperatures on the growth efficiency of alfalfa under the same microbial inoculant, the experimenter connects the infusion tubes 405 connected to the sides of the several groups of culture bottles 402 located in the first temperature control chamber 2 and the second temperature control chamber 3 to the same microbial inoculant solution to be tested, and at the same time controls the temperature difference between the first temperature control chamber 2 and the second temperature control chamber 3 through the constant temperature box 1, and observes the growth rate of alfalfa in the several groups of culture bottles 402 located in the first temperature control chamber 2 and the second temperature control chamber 3 in a cycle of seven to ten days;

[0057] When the experimenters want to complete the test of the effect of soils with different salinities on the growth efficiency of alfalfa under the same microbial agent, the experimenters connect the infusion tubes 405 connected to the sides of the two groups of culture bottles 402 to saline solutions of different concentrations, respectively, and observe the growth rate of alfalfa inside the two groups of culture bottles 402 in a cycle of seven to ten days. Since the microbial agent can improve the effect of saline-alkali soil on the growth of alfalfa, the effect of different microbial agents on the growth of alfalfa under the same salinity can be tested, or the effect of different pH values ​​on the growth of alfalfa, etc.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A microbial agent experimental comparison device for alfalfa planting, comprising a constant temperature box (1), characterized in that: A first temperature control chamber (2) and a second temperature control chamber (3) are respectively arranged on both sides of the interior of the constant temperature box (1); The first temperature control chamber (2) and the second temperature control chamber (3) are provided with a plurality of cultivation mechanisms (4) for providing a growth environment for alfalfa. The cultivation mechanisms (4) include a plurality of racks (401) symmetrically installed inside the first temperature control chamber (2) and the second temperature control chamber (3). A plurality of evenly distributed culture bottles (402) are inserted inside each group of racks (401). A reserved space (403) is provided at the top of each culture bottle (402). The interior of the culture bottle (402) is filled with culture soil, and the top of the culture soil layer is flush with the bottom of the reserved space (403); A sowing mechanism (5) for placing alfalfa seeds is placed on the top of each group of the cultivation mechanisms (4), and the sowing mechanism (5) includes a plurality of paperboards (501) placed on the top of each group of the culture bottles (402), and the paperboards (501) are made of cellulose material that degrades when exposed to water; The first temperature control chamber (2) and the second temperature control chamber (3) are also provided with a covering mechanism (6) for covering the alfalfa seeds with soil, the covering mechanism (6) comprising a plurality of bottom plates (601) fixed inside the constant temperature box (1), the bottom plates (601) and a plurality of groups of culture bottles (402) being staggered, and a covering piece (602) is slidably mounted on the top of each bottom plate (601); The sowing mechanism (5) is used to place alfalfa seeds on the top of the cultivation mechanism (4) in advance, and the soil covering mechanism (6) is used to operate to complete the planting of alfalfa seeds. At the same time, different microbial agents are provided to a plurality of groups of alfalfa seeds in the cultivation mechanism (4), and a comparative experiment is conducted by observing the growth status of alfalfa seeds in each group of the cultivation mechanism (4).

2. The microbial agent experimental comparison device for alfalfa planting according to claim 1, characterized in that: The cultivation mechanism (4) also includes a rubber hose (404) connected through the side of each reserved interval (403), and a plurality of evenly distributed infusion pipes (405) are arranged inside the constant temperature box (1), and the infusion pipe (405) is connected through the plurality of rubber hoses (404) in the same group.

3. The microbial agent experimental comparison device for alfalfa planting according to claim 1, characterized in that: The sowing mechanism (5) further comprises a plurality of concave sections (502) arranged inside each of the paperboards (501), each of the concave sections (502) correspondingly engaging with the inside of one of the reserved sections (403), and a plurality of seed embedding grooves (503) for placing alfalfa seeds being evenly arranged on the top of each of the concave sections (502).

4. The microbial agent experimental comparison device for alfalfa planting according to claim 1, characterized in that: The soil covering mechanism (6) further comprises a plurality of soil covering members (602) whose ends are fixedly connected to a connecting rod (603); an electric push rod (604) is horizontally installed on the outside of the thermostatic box (1); an output end of the electric push rod (604) horizontally penetrates into the interior of the thermostatic box (1) and is connected to the side of the connecting rod (603).

5. The microbial agent experimental comparison device for alfalfa planting according to claim 1, characterized in that: The soil covering member (602) comprises a filling portion (6021) slidably distributed on the top of the bottom plate (601), wherein the interior of the filling portion (6021) is paved with loose culture soil, and the bottom of each of the filling portions (6021) is provided with a plurality of circular through grooves (6022), and each of the circular through grooves (6022) is symmetrically distributed along the horizontal direction with respect to a reserved interval (403).

6. The microbial agent experimental comparison device for alfalfa planting according to claim 1, characterized in that: The bottom of each culture bottle (402) is provided with a plurality of evenly distributed oxygen permeable holes (406).

7. The microbial agent experimental comparison device for alfalfa planting according to claim 2, characterized in that: The bottom of each infusion tube (405) is connected through a plurality of evenly distributed cannulas (407), and each cannula (407) is correspondingly plugged into the interior of one of the rubber tubes (404).

8. The microbial agent experimental comparison device for alfalfa planting according to claim 2, characterized in that: An adapter (408) is provided at the end of each infusion tube (405), and the adapter (408) is distributed on the outside of the constant temperature box (1).

9. The microbial agent experimental comparison device for alfalfa planting according to claim 3, characterized in that: A plurality of discharge openings (504) are provided around the outer side of the bottom of each of the concave sections (502), and the excess alfalfa seeds inside the concave sections (502) fall out through the discharge openings (504).

10. The microbial agent experimental comparison device for alfalfa planting according to claim 3, characterized in that: A plurality of pre-torn holes (505) are evenly opened inside the paperboard (501), and the pre-torn holes (505) and the concave areas (502) are interspersed and distributed.

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